MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous embedded URLs, with one identified as a malicious redirector. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external PDF links, suggesting a link farm or SEO manipulation tactic. The ML classifier also flagged the PDF as malicious with high confidence. The presence of a malicious redirector suggests an attempt to lead the user to a harmful site.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://ttraff.com/pify?keyword=purpose+of+authentic+assessment+pdf
- http://files.davidjrose.com/uploads/1/3/2/7/132740552/kugabiburedu-worogodebudoras.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0432/4494/5571/files/negumalitepupegajuvo.pdf
- https://cdn.shopify.com/s/files/1/0427/8393/2582/files/73830943475.pdf
- https://cdn.shopify.com/s/files/1/0433/6071/4904/files/fokuwuk.pdf
- https://cdn.shopify.com/s/files/1/0428/1974/7999/files/18025410061.pdf
- https://cdn.shopify.com/s/files/1/0429/8611/1137/files/nutip.pdf
- https://cdn.shopify.com/s/files/1/0431/6033/8586/files/36210761155.pdf
- https://cdn.shopify.com/s/files/1/0433/7447/7464/files/korean_visa_application_form_philippines_2018.pdf
- https://cdn.shopify.com/s/files/1/0429/7749/3146/files/ladijidovijufemudozilug.pdf
- https://cdn.shopify.com/s/files/1/0431/4575/6821/files/nuduwe.pdf
- https://cdn.shopify.com/s/files/1/0435/0305/9110/files/9641313654.pdf
- https://cdn.shopify.com/s/files/1/0432/2734/9159/files/behold_the_dreamers_download.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000061cb.binbfe27f47566a15d746b4a1ef18a646613f61c92c6b1d9db518d95fb33df703f3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x61CB | 5364 bytes |
font_01_sfnt_off000073d9.bin5cf9c6f40827acce202940b031616153045392898e2406f6e77b4efea5ca4237 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x73D9 | 10092 bytes |
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